Thread twisting and waxing machine.



PATENTED JULY 11, 1905.

A. H. FORSYTHE.

THREAD TWISTING AND WAXING MACHINE.

APPLICATION FILED APR. 9. 1904. RENEWED JUNE 17,1905.

WITNESSES:

PATENTED JULY 11 1905.

A. H. FORSYTHB. THREAD TWISTING AND WAXING MACHINE:

APPLICATION FILED APR. 9. 1904. RENEWED JUNE 17 1905.

2 SHEETS-SHEET 24 v HVVE/VTOR J52? 0, 12 ZZragZ/te ATTOR/VE WITNESSES.

UNITED STATES Patented July 11, 1905.

PATENT OFFICE.

ALBERT HARRIS FORSYTHE, OF SARCOXIE, MISSOURI.

SPECIFICATION forming part of Letters Patent No. 794,669, dated July 11,1905.

Application filed April 9,1904. Renewed June 17, 1905. Serial No.265,811.

To all whom it may concern.-

Be it known that I, ALBERT HARRIS FOR- SYTHE, a citizen of the UnitedStates, and a resident of Sarcoxie, in the county of Jasper and State ofMissouri, have invented a new and Improved Thread Twisting and WaxingMachine, of which the following is a full, clear, and exact description.

This invention relates particularly to improvements in machines fortwisting together a plurality of threads and Waxing the same for use ina leather-sewing machine, an object being to provide a machine for thispurpose that will be simple in construction, positive in action, andthat may be readily attached to a sewing-machine.

I will describe a thread twisting and waxing machine embodying myinvention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings,-forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure is a perspective view of a thread twisting and waxing machineembodying my invention. Fig. 2 is a diagrammatic view illustrating thecourse of the thread. Fig. 3 is a sectional elevation of the machine.Fig. 4 is a section on the line 4 4 of Fig. 3, and Fig. 5 is a sectionon the line 5 5 of Fig. 3.

Referring to the drawings, .10 designates a standard extended upwardfromthe bed-plate 11 of a sewing-machine. Attached to the upper end of thestandard is an arm 12, forming a bearing for a shaft 13, on the upperend of which is a pinion 14, meshing with a gear-wheel 15 on a shaft 16,which has bearings in arms 17 18 attached to the standard 10. The lowerend of the shaft 16 has attached to it a bevel-pinion 19, meshing with abevel-pinion 20, arranged on a shaft 21, and on the shaft 21 is acone-pulley 22, from which a band 23 extends to a cone-pulley 24 on acounter-shaft 25, and on this counter-shaft is a balance-wheel 26 and acam-wheel 27 for operating the handle-bar of a sewing-machine in theusual manner. By means of the conepulleys 22 24 the speed of thedriving-wheel 15 may be regulated, and consequently regulate the speedof the twisting mechanism, to be hereinafter described.

Motion is imparted to the shaft by means of a driving-belt 28 engagingwith a pulley 29 on said shaft. Supported on the standard 10 is ahot-water box 30, having at its center a chamber 31, in which awax-receptacle 32 is arranged to rotate. Secured to the upper end of thewax-receptacle 32 is a spider 33, which is connected to the shaft 13,and at the lower end the wax-receptacle has a tubular extension 34,which has a bearing in a tubular extension 35 on the water-box 30.

Arranged in the tubular extension 34 is a perforated bushing 36, ofrubber, and through this bushing the threads are designed to pass duringthe twisting operation, and the bushing is also designed to regulate theamount of the wax applied to the twisted threads. The pressure of therubber bushing on the threads may be regulated bya screw 37 engagingwith the interior thread of the extension and passing through a tubularnut 38, engaging with the thread of the extension 35.

Below the water-box 30 and communicating therewith through a pipe 39 isanother waterbox 40, having a chamber 41, in which is arranged awax-receptacle 42, which has a tubular extension 43 at its lower end, inwhich is arranged a rubber bushing 44, which is perforated to permit thepassage therethrough of the twisted threads, and the degree of pressureof the rubber bushing on the threads maybe regulated by a screw 45similar to the screw 37. The bushings 36 44 not only serve the purposesabove mentioned, but they also prevent leakage of the melted wax.

Hot water is supplied to the water-boxes through a pipe 46 and passesout through a pipe 47 These pipes may connect with any suitable heater,and they are designed to maintain a constant circulation of hot water.

Fixedly mounted on the shaft 13 is a sleeve 48, and on this sleeve areoutwardly-extended spindles 49, on which the thread-spools 50 aremounted to rotate. To prevent too free movement of the spools on thespindles, I provide springs 51, which surround the spindles and engagewith the ends of the spools, and the tension may be regulated by nuts52. From the spools threads 53 extend upward over levers 54, mounted toswing on arms 55, extended outward from the upper end of the sleeve 48.These arms at their outer ends are provided with slots which form guidesfor the threads. It may be here stated that in winding threads on thespools the inner ends are to be secured to the spools, and when thethread is entirely unwound from a spool it is desired that an alarmshall be given, and therefore the levers 54 are designed to serve asclosers for an electric circuit by engaging with a contact-ring 56,attached to the arm 12 but insulated therefrom and also insulated fromthe shaft 13, around which the ring extends. The alarm, as here shown,consists of a bell 57, having a wire connection 58 with the ring 56 andalso having a wire connection 59 with the levers 54, through the sleeve48 and the arms 55, and in the wire 59 is arranged an electric battery60. Obviously when the thread is entirely unwound from the spool and asits end is secured thereto there will be a downward pull on the outerend of the levers 54, causing their inner ends to engage with thecontact-ring 56 to close the circuit and sound the alarm.

The twisting of the thread is done between the rotary wax-holder 32 andthe fixed waxholder 42, and after passing out of the waxholder 42 thethread passes under a pulley 61, which draws the thread through thewax-pot, thence over a pulley 62, under a spring-tension pulley 63, andthen over a pulley 64 to the sewing-machine.

On the shaft 21 is a pinion 65, engaging with a gear-wheel 66, and onthe same shaft with the gear-wheel 66 is fitted a grooved pulley. Towind the bobbin for the sewing-machine, the thread is passed from thewax-pots around the grooved pulley on the shaft of the wheel 66, and theend of the thread is attached to the bobbin in the bobbin-winder. Bythrowing the thread-machine out of gear and turning the bobbin-winderthe thread serves as a drive-belt for the thread-machine and makes thethread as it is wound on the bobbin for the sewing-machine.

1n the operation the several strands or threads are passed into thewax-holder 32 and also through the wax-holder 42 after being twistedbetween the two wax-holders, as be fore mentioned. The hot water in theboxes will keep the wax in a liquid condition, and the individualstrands or threads will be thoroughly waxed in the holder 32, and thetwisted threads will be waxed on the outer side in the holder 42.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A thread twisting and waxing device comprising aliquidwax holder, means for causing a rotary movement of the holder, aplurality of thread-spool supports mounted to rotate above thewax-holder, a fixed waxholder below the rotary wax -holder, and meansfor heating the wax-holders.

2. A machine for twisting and waxing thread, comprising a rotarywax-holder having a tubular extension at the bottom, a flexibleperforated bushing arranged in said extension, means for adjusting thepressure of the bushing, and means for drawing threads through thewax-holder and bushing.

3. A thread twisting and waxing machine comprising a rotary wax-holder,means for heating the same, a tubular extension at the bottom of theholder, a flexible perforated bushing in said extension, a fixedwax-holder below the first-named holder, the said fixed holder having atubular extension at the bottom, a perforated flexible bushing in saidextension, and thread-supply devices above the first-named wax-holder.

4. A thread twisting and waxing machine comprising a standard, awater-box supported on said standard and having a chamber, a wax-holdermounted to rotate in said chamher, a water-box below the first-named boxand communicating therewith, a wax-holder arranged in said lower box,water inlet and outlet pipes for the boxes, and threadsupporting devicesabove the first-named holder.

5. A thread twisting and waxing machine comprising wax-holders throughwhich the threads are designed to pass, a rotary shaft to which one ofsaid holders is secured, spindles carried by said shaft for supportingthereon spools, swinging levers over which the threads are designed topass, the said levers forming electric contact-points, a contact-ringadapted to be engaged by said points, and an electric-alarm devicehaving connection with said ring and said levers.

6. A thread twisting and waxing machine comprising a rotary wax-holder,a fixed waxholder below the rotary holder, means for heating saidholders, the said holders having openings in the bottom through whichthe threads to be twisted and waxed may pass, a shaft supporting therotary holder, spoolsupporting spindles extending outward from saidshaft, and tension-springs on the spindles.

7. A thread twisting and waxing machine comprising a standard, heatingdevices supported on the standard, a Wax-holder mounted to rotate in oneof the heating devices, a waxholder immovably placed in the other ofsaid heating devices, the said holders having tubular extensions at thebottom, perforated rubber bushings in said extensions, and a rotarythread-carrier arranged above the rotary wax-holder.

8. A thread twisting and waxing machine comprising a standard, an armextended from the upper end of said standard, a shaft having a bearingin said arm, a pinion on the upper end of said shaft, a gear-wheelsupported by the standard and engaging with said pinion,

a driving mechanism for said gear-wheel, a wax-holder carried by saidshaft and having an opening in its bottom through which threads maypass, a sleeve on the shaft, spindles extended from the sleeve forsupporting spools of thread, arms extended outward from the sleeve andhaving guide-slots, levers mounted to swing on the arms and over whichthe threads pass, the said levers forming electric contacts, acontact-ring supported by the arm extended from the standard andinsulated therefrom, and an electric bell having connection with saidring and with said sleeve.

9. A thread twister and waxer comprising two wax-holders arranged oneabove the other and having openings at the lower end through whichthreads may pass, the upper holder being mounted to rotate to cause thetwisting of the threads or strands between the upper holder and thelower holder, and thread-holding devices mounted to rotate with therotary holder.

10. In a thread twisting and waxing ma- I chine, a rotary wax-holder, afixed wax-holder below the rotaryv holder the said holders havingopenings through the bottom, water-boxes in which the holders arearranged, the said boxes communicating one with the other,circulating-pipes communicating with the boxes, rotary thread-holdersarranged above the rotary wax-holder, and means for rotating saidwax-holder and thread-holders.

11. A thread twisting and waxing machine comprising a rotary wax-holder,a fixed waxholder, below the rotary holder, said holders having openingsthrough the bottom, threadsupporting devices arranged above the rotaryholder, and electric-alarm-circuit closers con: trolled by threadsextended from the threadholders.

12. A thread twister and waxer comprising mechanism for waxing aplurality of threads, twisting the threads together, and then waxing thetwisted thread.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALBERT HARRIS FORSYTHE.

WVitnesses:

CLYDE R. WALLAR, H. B. BOYD.

